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EDIT: IGNORE THIS - I got this wrong The new "Smart System" components are not compatible with the older motor system used on the Gen 3 Rail 9.8 From this link Bosch Smart System FAQ — G&O Family Cyclery | Seattle Electric Bike Shop It is called “The Smart System” and unlike previous releases of...

I have a Rail 5 with same brakes as you. I have done 2,500km on them and they have always been completely silent. I have replaced two sets of pads on the back and one set on front as well as the rear rotor all with same parts as orignal (resin pads). I have had no problems with them.

I asked e13 if their chainrings are compatible with T-Type chain, they said they are still testing and will let me know.

Great The blue sleeve is a tool to aid installation of the locknut to avoid damage to the seal, it is not fitted to the bike. I did an explainer video in post #1,591

I stumbled on one recently while looking for something else ebike24.com Search for "TQ HPR Lock Ring"

How Did the ride go? E13 chainring OK?

Mteam - Any update on this?

OK, for those that can't get enough TQ-HPR50 I've done a new video showing the build sequence. I promise I wont do any more, for your sanity and mine!

Excellent Thank-you! First time I have seen the real seal. This looks like a standard oil seal, which is basically what I have drawn in my CAD model, so I'm happy about that. I can't make out the retaining band that you pointed out. The ring pointed to is just the outer part of the seal. The...

Thanks, glad that was helpful Yeh, the seal shouldn't be damaged by the 20 tooth tool since it only touches the robust back face of the seal. EDITED: I don't think the splines on the shaft are the main concern. The purpose appears to be to get the seal safely over the lip where the shaft...

OK, Just for fun I've created an animation of the Locknut installation, showing the use of the installation sleeve, and showing the seal that I've been talking about. Again this is from my CAD model so there could be inaccuracies. If the seal doesn't look right please post a photo so I can...

I'd recommend getting one from Trek. It needs to be very smooth and it needs to be slightly tapered (conical) so that it slowly expands the seal to the right diameter by the time it gets to the shaft.

OK Great, It sounds like new deliveries have the seal installed in the locknut, plus they are supplying the sleeve that is used to ensure that the seal doesn't get damaged when installing the locknut. I was getting the impression that the seal may not be installed on some bikes. I'd suggest...

Thanks My question is whether Trek is fitting the seal that they say is necessary to avoid water damage

I don't see a seal in that lock nut. I see the oring but no seal to the spindle. Trek says in the manual supplement that damage to the seal could allow water to damage the motor. Presumably no seal would also allow water to damage the motor. Has the seal been removed? Has anyone else checked if...

Madness I think! It started with just wanting to understand how the Harmonic Pin Ring worked, then it I did a bit more, then it turned into an obsession. I did enjoy improving my novice level the 3D CAD skills though, now novice+1

I don't see an obvious explanation for that. I see that TQ were promising a software fix, I guess that hasn't turned up yet.

Nice, but the HPR50 works a little differently to that. The one shown above is a strain wave reduction drive. TQ have a patented design that they call the Harmonic Pin Ring drive, it works differently to other so called Harmonic Drives. I did a video on the motor including how the Harmonic Pin...

I've posted a short video showing the operation of the TQ-HPR50 clutches It's not official just my interpretation, but I think it's pretty close

Request for photo of the chain ring Lock Nut (if you happen to have it off) I'd like to make sure my 3D model has this right. I'd like a photo of both sides of the nut. The inside should have an oring and seal attached to, if not then a photo of that would be interesting too.